[PATCH 3/3] memory: atmel-ebi: Add PM ops
From: Boris Brezillon <hidden>
Date: 2017-02-20 17:17:14
Also in:
lkml
Subsystem:
arm/microchip (at91) soc support, memory controller drivers, the rest · Maintainers:
Nicolas Ferre, Alexandre Belloni, Claudiu Beznea, Krzysztof Kozlowski, Linus Torvalds
Add a ->resume() hook to make sure the EBI dev configs are correctly restored when resuming the platform. Signed-off-by: Boris Brezillon <redacted> --- drivers/memory/atmel-ebi.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)
diff --git a/drivers/memory/atmel-ebi.c b/drivers/memory/atmel-ebi.c
index 06a1a136d448..15120cb37cf0 100644
--- a/drivers/memory/atmel-ebi.c
+++ b/drivers/memory/atmel-ebi.c@@ -506,6 +506,8 @@ static int atmel_ebi_probe(struct platform_device *pdev) if (!ebi) return -ENOMEM; + platform_set_drvdata(pdev, ebi); + INIT_LIST_HEAD(&ebi->devs); ebi->caps = match->data; ebi->dev = dev;
@@ -578,10 +580,28 @@ static int atmel_ebi_probe(struct platform_device *pdev) return of_platform_populate(np, NULL, NULL, dev); } +static int atmel_ebi_resume(struct device *dev) +{ + struct atmel_ebi *ebi = dev_get_drvdata(dev); + struct atmel_ebi_dev *ebid; + + list_for_each_entry(ebid, &ebi->devs, node) { + int i; + + for (i = 0; i < ebid->numcs; i++) + ebid->ebi->caps->apply_config(ebid, &ebid->configs[i]); + } + + return 0; +} + +static SIMPLE_DEV_PM_OPS(atmel_ebi_pm_ops, NULL, atmel_ebi_resume); + static struct platform_driver atmel_ebi_driver = { .driver = { .name = "atmel-ebi", .of_match_table = atmel_ebi_id_table, + .pm = &atmel_ebi_pm_ops, }, }; builtin_platform_driver_probe(atmel_ebi_driver, atmel_ebi_probe);
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2.7.4